INDEX Service Manual M4 - M10
17.10.2001 Page 6
8.2.6 Wiring table ........................................................................................................ 66
8.2.7 Spare Parts ......................................................................................................... 67
8.3 DC bus and precharging circuit.................................................................................. 67
8.3.1 Description.......................................................................................................... 67
8.3.2 Operation ............................................................................................................ 68
8.3.3 Troubleshooting.................................................................................................. 69
8.3.4 Spare parts ......................................................................................................... 70
8.4 DC- to AC-converter (inverter)................................................................................... 70
8.4.1 Description.......................................................................................................... 70
8.4.2 Operation ............................................................................................................ 70
8.4.3 Troubleshooting.................................................................................................. 70
8.4.4 Assembly instructions of IGBTs........................................................................... 70
8.4.5 Tightening order and torque ............................................................................... 71
8.4.6 Spare parts ......................................................................................................... 72
8.5 Balancing thick foil resistors..................................................................................... 72
8.5.1 Description.......................................................................................................... 72
8.5.2 Operation ............................................................................................................ 72
8.5.3 Troubleshooting.................................................................................................. 72
8.5.4 Assembly instructions......................................................................................... 72
8.5.5 wiring table......................................................................................................... 72
8.5.6 Spare parts ......................................................................................................... 72
8.6 Mechanics.................................................................................................................. 73
8.6.1 Bus bars.............................................................................................................. 73
8.6.2 Input Terminals................................................................................................... 76
8.7 Connectors ................................................................................................................ 77
8.8 NTC resistor .............................................................................................................. 77
8.9 Main circuit diagrams ................................................................................................ 77
9. PC BOARDS
................................................................................................................... 78
9.1 General...................................................................................................................... 78
9.2 Power board.............................................................................................................. 78
9.2.1 Description.......................................................................................................... 78
9.2.2 Warnings............................................................................................................. 79
9.2.3 Layouts, connectors and signals ......................................................................... 79
9.2.4 Schematic diagrams............................................................................................ 88
9.2.5 Troubleshooting.................................................................................................. 88
9.2.6 Gate circuitry ...................................................................................................... 88
9.2.6.1 Description ................................................................................................... 88
9.2.6.2 Settings of gate resistors.............................................................................. 88
9.2.6.3 Voltage related settings on the board........................................................... 89
9.2.7 Replacement of the Power Boards...................................................................... 90
9.2.8 Spare parts ......................................................................................................... 91
9.3 Control board ............................................................................................................ 91
9.3.1 Description.......................................................................................................... 91
9.3.2 Warnings............................................................................................................. 92
9.3.3 Layout, connectors and wirings .......................................................................... 92
9.3.4 Schematic diagrams............................................................................................ 95
9.3.5 Troubleshooting.................................................................................................. 95
9.3.6 Replacement of Control Board ............................................................................ 95
9.3.7 Spare parts ......................................................................................................... 97
9.4 Adapter board ........................................................................................................... 98
9.4.1 Description.......................................................................................................... 98
9.4.2 Warnings............................................................................................................. 98
9.4.3 Layout, connectors and wirings .......................................................................... 98
9.4.4 Schematic diagrams.......................................................................................... 105
9.4.5 Troubleshooting................................................................................................ 105